Is it ensure, insure, or assure?
attention, perception; conscious mental observation
Latin animadvertere 'to turn the mind to'
1590s, "criticism, blame," also sometimes in early use simply "notice, attention" (now obsolete), from Latin animadversionem (nominative animadversio) "investigation, inquiry; perception, observation," noun of action from past participle stem of animadverte "to take cognizance of," literally "to turn the mind to," from animum, accusative of animus "mind" (see animus), + advertere "to turn to" (see advertise). The sense of "to take notice of as a fault" was in Latin; in fact animadverto at times was a euphemism for "to punish with death."